Explainer
Understand any SQL query.
Instantly.
Paste a complex SQL query and get a clear, detailed explanation of what each part does.
Usage examples
Try these prompts or write your own
1
SELECT u.name, COUNT(o.id) FROM users u LEFT JOIN orders o ON u.id = o.user_id GROUP BY u.name HAVING COUNT(o.id) > 5
2
SELECT *, ROW_NUMBER() OVER (PARTITION BY dept ORDER BY salary DESC) rn FROM employees
3
WITH monthly AS (SELECT DATE_TRUNC('month', created_at) m, SUM(amount) t FROM orders GROUP BY 1) SELECT m, t, SUM(t) OVER (ORDER BY m) FROM monthly
What is included
Line-by-line explanation
Support for all SQL dialects
Breaks down JOINs, CTEs and subqueries
Identifies potential optimizations
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